Sheet-piling.



G. W. MQFARLANE.

SHEET FILING. APPLIOATION I ILED JUNE 15, 1912.

Patented 061. 29, 1912.

GEORGE WILLIAM MOFARLANE, OF PARIS, ONTARIO, CANADA.

SHEET-PILING.

..- Specification of Letters Patent.

' Patented Oct. 29,1912.

3 Application filed June 15, 1912. Serial No. 703,865.

To all whom it may concern:

Be it known that I, GEORGE WILLIA MO- FARLANE, a citizen of the Dominionof Canada, residing at Paris, in the county of 5 Brant and Province ofOntario, Canada, mechanical engineer, have lnvented a certain new anduseful Improvement in Sheet-Pil-.

ing, of which the following is a full, clear, and exact description.

My invention relates to sheet metal iling, and its object is to providesections 0 great resisting power to .a lateral strain, and which may belocked together either' in straight or curved lines, the interlockingmeans being designed with a view to the easy withdrawal of the sectionswhen their usefulness at any point is ended.

Referring to the drawing in which simi-. lar letters and, numerals referto sim lar parts throughout, Figure l is a cross section of a pile, withportions of the neighboring piles with which it interlocks. Fig. 2 is anelevation of one section of the piling.

-. Each section of the piling consists of a web portion A, a ballportion B and a socket portion C. The web portion A, I prefer to wave orcorrugate longitudinally, the corrugations being shown as l in bothfigures. It is a Well known fact that the corrugating of a metal addsgreatly to its resisting power when opposed to a strain exerted at rightangles to the direction s'n which the corrugations run, but this hasbeen, not to my knowledge, applied to the manufacture of sheet metalpiling. A further advantage is secured by the corrugation of thesections, in that a lighter weight of metal may-be used than ifuncorrugated, yet the some 4 or even greater strength be secured and at40 a much less cost for material and handling. For the formation of theball and socket portions 'of the pile, the opposite edges of the web Aare asit were split into two wings, those forming the ball portion Bbeing shorter .than those forming the socket portion C. The wings 2 and3 of the ball portion B extend away from each other and diagonally awayfrom the web for about half their length at which point they areQ-turned'in toward each other, their extremities 4 and 5 being howeverseparated by the opening 6, thus forming a practically diamond shapedinale member.

The formation of the female member C is similar to that of the malemember B both being dl. *a ond shaped, the interlor of the tion.

.means of which a member being of a size suflicient to recelve themember B of an adjoiningpile t escopically and to coact therewith in the1 r'mation'of a range of piling, the extremities 7 and 8 of the member Cbeing. brought 'sufliciently close to each other to prevent thewithdrawal, of thefmember 'B irom the but a longitudinal. direcmember Cin any n will be noted that the ba'll portion B1 fits the socket portion0 Very loosely; and. that the diamond shape-of each admits ofa certainamountzof rotation of the part B Within the part 0 so that aconsiderable wall formed of a series of the "interlocked sections. Thisis shown in the position the part B has taken in relation to the part C.

I have found the diamondshape to be a very preferable formof interlock,the contact between the male and female members being thereby reducedtmamere point, so that the riskof these being kept apart by grit orgravel, therebypreventing a water tight joint isreduced' to ga'ininimum,also, the fact that the contact of the parts in the interlock is sosmall greatly facilitates the drawing of the piles when they'have servedtheir purpose at any given point.

It is preferable't-hat the parts be rolled integral from a single ingotof metal.

The dotted member D is introduced to show the meansof attaching a rangeat right angles to the main wall or as a means of turning the main wallwhen a rectangular inclosure is desired.

9 indicates an aperture in the web A bypulling means may be attached tothe pile.

Having thus-fully described my said invention what I claim is 1. Arolled metal pile having a corrugated web, and divided terminal edges,the edges at one side of said web forming a hollow diamond. shaped malemember and those at the opposite side a hollow diamond shaped iemalemember said members being designedto slidably interlock withv thecorresponding parts of .piles of similar construction.

2. In rolled sheet tal piling, the combination of similar sections, eachsection betermite edges, the divided edges on one side ofthe :veb extendng diagonally away from 2o amount of angling would be pbssible in .a

theweb for a portion of their length, then apprcachin each other to forma hollow diamond shaped male member, and the divided edges at the otherside extending diagonally away from the web for a portion of theirlength then approaching each other to form a hollow diamond shapedfemale memberfadapted to receive the male member of an adjacent sectionand slidaloly interlock therewith.

3. In rolled sheet metal piling, the combination of'a plurality ofsimilar sections, eaclrcomprising a longitudinally corrugated web,having divided terminal edges, the di znoeanet vided edges on one sideof the web forming 5 a hollow diamond shaped male member, and those onthe other side a hollow diamond shaped female'member adapted to receivethe male member of an adjacent section and allow of a certain amount ofrotation therein whereby a wall being constructed by the interlocking ofsaid sections might be defiected from a straight line.

GEORGE WILLIAM MCFARLANE.

Witnesses KA'mLnnN GRADY, PEARL A mowsMITH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents,

Washington, D. C.

